[{"n": "Cynodontia", "u": "/e/prehistoric-synapsids/cynodontia/", "s": "Clade of therapsids that includes mammals and their extinct relatives, first appearing in the Late Permian."}, {"n": "Diadectes", "u": "/e/prehistoric-synapsids/diadectes/", "s": "Early Permian herbivorous reptiliomorph, one of the first large land vertebrates."}, {"n": "Dicynodontia", "u": "/e/prehistoric-synapsids/dicynodontia/", "s": "Extinct herbivorous synapsids with tusks and a horny beak, dominant in the Permian and Triassic."}, {"n": "Dimetrodon", "u": "/e/prehistoric-synapsids/dimetrodon/", "s": "Permian synapsid with a distinctive sail, related to mammals."}, {"n": "Dinocephalia", "u": "/e/prehistoric-synapsids/dinocephalia/", "s": "Terrible-headed titans of the Middle Permian"}, {"n": "Edaphosaurus", "u": "/e/prehistoric-synapsids/edaphosaurus/", "s": "Early herbivorous synapsid with a distinctive sail and tooth plates."}, {"n": "Gorgonops", "u": "/e/prehistoric-synapsids/gorgonops/", "s": "A saber-toothed therapsid predator of the Late Permian."}, {"n": "Gorgonopsia", "u": "/e/prehistoric-synapsids/gorgonopsia/", "s": "Sabre-toothed therapsid apex predators of the Permian."}, {"n": "Eutriconodonta", "u": "/e/prehistoric-synapsids/eutriconodonta/", "s": "Early mammals showing diverse bodyplans and ecological roles."}, {"n": "Inostrancevia", "u": "/e/prehistoric-synapsids/inostrancevia/", "s": "Largest known gorgonopsian, a saber-toothed predator of the Late Permian."}, {"n": "Lystrosaurus", "u": "/e/prehistoric-synapsids/lystrosaurus/", "s": "A shovel-lizard that thrived after Earth's worst mass extinction."}, {"n": "Mammaliaformes", "u": "/e/prehistoric-synapsids/mammaliaformes/", "s": "Clade of synapsid tetrapods including mammals and extinct relatives."}, {"n": "Megazostrodon", "u": "/e/prehistoric-synapsids/megazostrodon/", "s": "Small shrew-like mammaliaform from the Early Jurassic and Late Triassic."}, {"n": "Moschops", "u": "/e/prehistoric-synapsids/moschops/", "s": "A heavily built herbivorous dinocephalian known for head-butting behavior."}, {"n": "Multituberculata", "u": "/e/prehistoric-synapsids/multituberculata/", "s": "Multituberculata, commonly known as multituberculates, is an extinct order of rodent-like mammals named for th"}, {"n": "Synapsida", "u": "/e/prehistoric-synapsids/synapsida/", "s": "Clade including mammals and their extinct relatives."}, {"n": "Therapsida", "u": "/e/prehistoric-synapsids/therapsida/", "s": "Major synapsid group that includes mammals and their ancestors."}, {"n": "Therocephalia", "u": "/e/prehistoric-synapsids/therocephalia/", "s": "Extinct therapsids, close relatives of cynodonts and mammals."}, {"n": "Thrinaxodon", "u": "/e/prehistoric-synapsids/thrinaxodon/", "s": "Early Triassic cynodont with transitional ear and burrowing behavior."}]